643. Baker, V.W. and I.P. Swanson. 1962. Economic effects of a grass-legume rotation in Palouse wheat-pea area.. WA Agr. Expt. Sta. Circular #183.Farms using a grass-legume rotation show important economic advantages over other farms in comparison of 5 year data from 3 pairs of Palouse farms. T: Amount of cropland by type of crop. Average annual crop production. Cost inputs and income per cropland acre. Calculated erosion losses.

3570. Kent, R.L.. 1957. Conservation crop rotations in the PNW.. J. Soil Water Conservation, 12(6): 269.Experimental data and observations indicate that crop rotations with grass and legumes is needed in the wheat-pea area. Also of importance are strip croping, contour operation, stubble mulching, early seeding of winter wheat. T: comparison of OM, water loss, soil loss from virgin land and crop land.

4817. Nelson, A.L.. 1933. Grasses, alfalfa, and sweetclover at the Archer Field Station.. WY Agr. Expt. Sta. Bulletin 195.Alfalfa was not successful as a legume in rotation with cereals over 16 years. Oat yields following 2 years alfalfa were 14.7 bu/ac compared to 21.5 following corn. Alfalfa greatly depleted soil moisture.